//================= Cancel/Terminate Your Spot Request =====================//
//==========================================================================//
try {
// Cancel requests.
System.out.println("Cancelling requests.");
CancelSpotInstanceRequestsRequest cancelRequest = new CancelSpotInstanceRequestsRequest(spotInstanceRequestIds);
ec2.cancelSpotInstanceRequests(cancelRequest);
} catch (AmazonServiceException e) {
// Write out any exceptions that may have occurred.
System.out.println("Error cancelling instances");
System.out.println("Caught Exception: " + e.getMessage());